Circuit board electrical connector

Abstract

A circuit board electrical connector includes a housing (10); a plurality of contact elements (25) arranged in the housing; a receiving recess (23) provided in the housing for receiving a circuit board (1) such that contact pads (2) of the circuit board are brought into contact with the contact elements; an ejector (40) provided on the housing for ejecting the circuit board so as to release the contact between the circuit board and the contact elements; a slide portion (41) provided on the ejector and having an action face (49) at a lower end thereof; a finger portion (42) provided on the ejector and having a bearing face (46) for abutting action face to receive a pushing force from the slide portion for rotation to lift the circuit board; and fulcrum means (26) provided in the housing for support the finger portion between bearing face and a front end for rotation.

The invention claimed is: 
     
       1. A circuit board electrical connector, comprises: a housing made from an insulation material so as to provide a holding section and a pair of guiding sections extending upwardly from opposite ends of said holding section;   a plurality of contact elements arranged in said holding section;   a receiving recess provided in said holding section for receiving a circuit board such that contact pads of said circuit board are brought into contact with said contact elements;   an ejector provided on said housing for ejecting said circuit board from said holding section;   a slide portion provided on said ejector for sliding along one of said guiding sections and having surface means at a lower end thereof;   a finger portion provided on said ejector and having bearing means abutted on said surface means of said slide portion when said ejector is attached to said housing so that when said slide portion is depressed downward in a solely vertical direction, said bearing means receives a pushing force from said slide portion and moves downwardly; and   fulcrum means provided on said holding section for supporting said finger portion between said bearing means and a front end of said finger portion so that when said slide portion is depressed downwardly, said finger portion rotates to lift said circuit board with said front end of said finger portion, thereby ejecting said circuit board from said electrical connector.   
     
     
       2. A circuit board electrical connector according to claim 1, wherein said bearing means has a cylindrical surface and said surface means has a concave surface for receiving said bearing means. 
     
     
       3. A circuit board electrical connector according to claim 1, wherein said slide portion and said finger portion are connected as a unit with a flexible linkage provided between said surface means and said bearing means, respectively. 
     
     
       4. A circuit board electrical connector according to claim 1, wherein said fulcrum means is a pair of tapered projections. 
     
     
       5. A circuit board electrical connector according to claim 4, wherein said finger portion comprises a flexible fork portion with a front end connected with a connecting member so that said flexible fork portion is able to pass through a gap between said tapered projections and is supported by said tapered projections for rotation. 
     
     
       6. A circuit board electrical connector according to claim 1, wherein said fulcrum means is a pin. 
     
     
       7. A circuit board electrical connector according to claim 6, wherein said finger portion comprises an elongated hole through which said pin is put.